-1
absolute
-1
airy
-1
artless
-1
categorical
-1
containing nothing(expression, idiom)
-1
depopulated
-1
devoid
-1
empty shackles(expression, idiom)
-1
passable
-1
producing nothing(expression, idiom)
-1
profound
-1
proper
-1
pure
-1
see through(expression, dull, obscure, uncertain)
-1
sincere
-1
thorough
-1
unblocked
-1
uncloged
-1
unclogged
-1
uncongested
11 years ago|942 views|share |citing 
APASmart Define. (2015). congested thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/congested/thesaurus/antonyms
ChicagoSmart Define. 2015. "congested thesaurus" https://smartdefine.org/congested/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, congested thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/congested/thesaurus/antonyms>.
MLASmart Define. "congested thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/congested/thesaurus/antonyms>